Tuning-hammer



(No Model.)

A. W. GREEN.

TUNING HAMMER.

Patented June 2, 1885.

Wa ow a %,&/W z W cm 24 MA adam Ill! e ifffncmedj UNITED STATES ANDREIV\V. GREEN,

PATENT OFFIQEO OF PEORIA, ILLINOIS.

TUNING-HAMMER.

EPECIFICATION forming part of Letters Patent No. 318,981, dated June 2,1885.

(No model.)

To aZZ whom, it may concern:

Be it known that I, ANDREW W. GREEN, of Peoria, in the county of Peoria,in the State of Illinois, have invented an Improved Tuning-Hammer; and Ido hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the annexed drawings, makinga part of this specification, in which like letters of reference referto like parts, and in which- Figure 1 represents a longitudinal sectionthrough the center; Fig. 2, a transverse section through :c at; Fig. 3,an end view of the wrench B; Fig. 4, a view ofthe wrench combined withanother form of handle.

' The object of this invention is the construction of a tuning-hammerthat shall be adapted to fit any size of pin upon which the wires arestretched in pianos, and one that shall be capable of being used singlyor doubly.

In the drawings, B B represent the wrenches ofthetuning-hammer; A, thesocket-piece, and F the handle.

Tuning-hammers as usually made consist of double wrenches B 13, havingsquare orifices in the ends, made to fit in each case one size of pin.To .render these orifices O capable of fitting any size of pin withinreasonable limits, I make them large enough to accommodate the largestpin to be met with in ordinary work, and secure at one side of eachorifice a thin strip of steel, 0, having means for fastening it at anypoint between the said side and the opposite one. Means for thusadjusting said strip of steel are found in the screws D and E. The twoscrews E press the end 0 of this strip against the screws D, and theselatter screws hold said strip firml y against the pin, the turning ofwhich is to tune the string connected therewith. The outer end of thisstrip 0 is bent into a foot, 0, which, by being in the dovetailed notchO, prevents the same from dropping out from its containing orifice O.Said foot 0 not only serves to keep the strip 0 from getting out ofplace, but also becomes a guard to keep a pin from going behind thestrip 0 it the pin were small and the strip therefore pressed fartheraway from the side of orifice 0.

If, as often happens, it is not convenient touse in a certain part ofthe piano the double tuning-ham 1ner-such as is shown in Fig. 1 thewrench B can be removed from the other wrench and the handle, and thelatter may be used alone. adapt its end B to fit into the opening A inthe socketpiece A. The handle F, screwing into said socket-piece A, andpressing against the side of the inserted end B prevents the same frombeing withdrawn therefrom and also from being turned therein when underthe pressure of being used in tuning.

By having three or four such indentations B in the side of the end B itbecomes possible to dispense with the other wrench portion, B, whosegripping-strip U is set at right angles to that of the other.

By putting the wrench B in a simple gimlet-handle, G, and fasteningittherein by means of a set-screw, G, I am able to use it for turning thepins down into place previous to the tuning tension of the wire beingreached.

that I claim as my invent-ion, and for which I desire Letters Patent, isas follows, to Wit:

1. In a tuning-hammer, the wrench I3, having opening 0, in combinationwith strip 0 and the screws D and E, substantially as and for thepurpose specified.

2. In a tuning-hammer, the wrench B, haw ing opening 0 and dovetailnotch O, in conibination with the strip 0, having foot 0', and l thescrews D and E, substantially as and for the purpose set forth.

3. The socket A, having wrench B formed as a part thereof, incombination with the wrench B, removable from said socket, and thehandle F, having screw-threaded end, sub stantially as and for thepurpose specified.

4. In a tuning-hammer, the socket A, having the wrench B, formed as apart thereof, in combination with the wrench B, detachable from saidsocket A and provided with means for retaining it therein, forthcpurpose set forth.

In testimony that I claim the foregoing in vention I have hereunto setmy hand this 28th day of September, 1883.

ANDREIV \V. GREEN.

Witnesses:

H. W. WELLs, Rionn. A. GOLDSBROUGH.

To make it thus removable I

